.column-article{--column-blue: #001489;--column-text: #333;--column-muted: #777;--column-subtle: rgba(51, 51, 51, .75);--column-border: #dfe3ec;--column-surface: #f5f6fa;color:var(--column-text)}.column-article__breadcrumb{display:flex;width:100%;height:40px;max-width:100%;padding:0 16px;align-items:center;gap:4px;background:#f6f6f6;font-size:1.2rem}.column-article__breadcrumb .breadcrumb{display:flex;align-items:center;gap:4px;width:100%;max-width:640px;min-width:0;overflow:hidden;white-space:nowrap;margin:0 auto;color:var(--column-subtle)}.column-article__breadcrumb .breadcrumb .link{color:var(--column-subtle);text-decoration-line:underline;text-decoration-style:solid;text-decoration-skip-ink:auto;text-decoration-thickness:auto;text-underline-offset:auto;text-underline-position:from-font}.column-article__breadcrumb .breadcrumb>*{flex-shrink:0}.column-article__breadcrumb .breadcrumb>:last-child{flex:1 1 auto;min-width:0;overflow:hidden;color:var(--column-text);text-overflow:ellipsis;line-height:29.61px}.column-article__header{padding-top:3.2rem}.column-article__header,.column-article__body,.column-closing,.column-related{width:calc(100% - 3rem);max-width:640px}.column-article__header,.column-article__body,.column-related>.page-width{padding-right:0;padding-left:0}.column-article__heading-meta{display:flex;align-items:flex-start;gap:2rem;color:var(--column-muted);font-size:1.2rem}.column-article__topics{display:flex;flex-wrap:wrap;gap:.6rem;color:#fff;font-size:1.2rem;font-weight:500;line-height:16.5px}.column-article__heading-meta time{flex-shrink:0;margin-left:auto}.column-article__topic{padding:.35rem .8rem;background:var(--column-blue);color:#fff}.column-article__share{display:flex;align-items:center;margin:1.2rem 0 3rem;color:#666;font-size:1.2rem}.column-article__share .footer__list-social{gap:1rem;margin:0;padding:0}.column-article__share button.list-social__link{padding:0;border:0;color:inherit;cursor:pointer}.column-article__copy-item{position:relative}.column-article__share-status{position:absolute;z-index:2;bottom:calc(100% + .6rem);left:50%;padding:.6rem .8rem;border-radius:.4rem;background:var(--column-blue);color:#fff;font-size:1.2rem;line-height:1.4;white-space:nowrap;transform:translate(-50%);pointer-events:none}.column-article__hero img{display:block;width:100%;height:auto}.column-article__body{padding-top:1rem;padding-bottom:7rem}.column-article__body--has-closing{padding-bottom:0}.column-article__lead{margin-bottom:3rem;font-feature-settings:"halt" on;font-size:1.4rem;font-weight:400;line-height:175%}.column-supervisors{display:grid;gap:1.5rem;max-width:560px;margin:3rem auto 4rem;padding:20px 24px;background:var(--column-surface)}.column-supervisor{display:grid;grid-template-columns:auto 1fr;gap:1.6rem;align-items:start}.column-supervisor+.column-supervisor{padding-top:1.5rem;border-top:.1rem solid 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0;padding-left:2.8rem}.column-article__index-list li{padding-left:.8rem}.column-article__index-list a{color:inherit;text-decoration:underline;text-underline-offset:.2rem;font-size:1.2rem}.column-closing{margin:0 auto;padding:5rem 4rem;background:#f5f7fb}.column-closing h2{margin:0 0 1.6rem;color:var(--column-blue);font-feature-settings:"halt" on;font-family:Noto Sans JP,Noto Sans Japanese,sans-serif;font-size:2.2rem;font-weight:600;line-height:150%}.column-closing__text{color:var(--column-text);font-feature-settings:"halt" on;font-size:1.4rem;line-height:175%}.column-closing__text p{margin:0 0 1.6rem}.column-closing__text p:last-child{margin-bottom:0}.column-closing__recommend-heading{margin:4rem 0 1.6rem;color:var(--column-blue);font-size:1.4rem;font-weight:600;line-height:150%}.column-closing__recommend-heading:first-child{margin-top:0}.column-closing__products{display:grid;gap:1.6rem}.column-closing__product{display:grid;grid-template-columns:12rem minmax(0,1fr);gap:1.6rem;align-self:stretch;padding:24px 16px 24px 24px;border:1px solid #ededed;background:#fff}.column-closing__product-image{display:block;align-self:start}.column-closing__product-image img,.column-closing__product-image svg{display:block;width:100%;height:auto;aspect-ratio:1;object-fit:contain}.column-closing__product-subtype{margin:0 0 .4rem;color:var(--column-muted);font-size:1rem;line-height:150%}.column-closing__product-title{margin:0;font-size:1.6rem;font-weight:600;line-height:150%}.column-closing__product-title a{color:var(--column-blue);text-decoration:none}.column-closing__product-summary{margin:.8rem 0 0;color:#0009;font-size:1.2rem;line-height:150%}.column-closing__product-summary p{margin:0}.column-closing__product-link{position:relative;display:flex;grid-column:1 / -1;width:200px;min-width:172.5px;max-width:408.96px;min-height:37.5px;padding:14.25px 12px;align-items:center;justify-content:center;margin:1.6rem auto 0;background:var(--column-blue);color:#fff;font-size:1.2rem;font-weight:500;line-height:150%;text-decoration:none}.column-closing__product-link-chevron{position:absolute;top:50%;right:16px;font-size:1.8rem;line-height:1;transform:translateY(-50%)}.column-series-pagination{display:flex;width:100%;max-width:640px;margin:0 auto;padding:2.4rem 1.6rem;background:var(--column-surface)}.column-series-pagination__item{flex:0 0 50%;width:50%;min-width:0;min-height:7.2rem;padding-right:1.6rem}.column-series-pagination__item:empty{display:block}.column-series-pagination__item--next{padding-right:0;padding-left:1.6rem;border-left:.1rem solid var(--column-border);text-align:right}.column-series-pagination__item a{display:flex;min-width:0;height:100%;flex-direction:column;align-items:flex-start;color:var(--column-text);text-decoration:none}.column-series-pagination__item--next a{align-items:flex-end}.column-series-pagination__direction{color:var(--column-muted);font-size:1.1rem;line-height:150%}.column-series-pagination__number{display:inline-block;margin-top:1.2rem;padding:.2rem .5rem;background:var(--column-blue);color:#fff;font-size:1rem;line-height:130%}.column-series-pagination__title{display:-webkit-box;width:100%;margin-top:.7rem;overflow:hidden;font-size:1.2rem;line-height:150%;text-align:left;-webkit-box-orient:vertical;-webkit-line-clamp:2}.column-series-pagination__item--next .column-series-pagination__title{text-align:right}.column-related{margin:0 auto;padding:5rem 0 8rem}.column-related h2{margin:0 0 2.4rem;color:#1a1a1a;font-size:1.8rem;font-weight:400;line-height:27px}.column-related__list{display:grid}.column-related__item .column-card{border-top:.1rem solid rgba(0,0,0,.15)}.column-related__item .column-card__link{display:grid;grid-template-columns:12rem 1fr;align-items:start;padding:1.6rem 0}.column-related__item .column-card__media{aspect-ratio:4 / 3}.column-related__item .column-card__body{padding:0 1.5rem}.column-article__back{display:table;margin:4rem auto 0;color:var(--column-muted);text-decoration:underline;text-underline-offset:.4rem}.column-article__series-back{padding-bottom:8rem}.column-related__item .column-card__title{color:#1a1a1a;font-size:1.4rem;font-weight:400;line-height:140%}@media screen and (min-width:750px){.column-article__header,.column-article__body,.column-related{width:calc(100% - 10rem)}.column-closing{width:100%}}@media screen and (max-width:749px){.column-article__body{padding-bottom:5rem}.column-article__body--has-closing{padding-bottom:0}.column-closing{padding:4rem 1.5rem;margin:0;width:100%}.column-closing__product{grid-template-columns:8.4rem minmax(0,1fr)}.column-related__item .column-card__link{grid-template-columns:9rem 1fr}}
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